UDF > GDIPlus > Region >

_GDIPlus_RegionGetBounds

Retourne un rectangle qui entoure une région donnée

#include <GDIPlus.au3>
_GDIPlus_RegionGetBounds ( $hRegion, $hGraphics )

Paramètres

$hRegion Handle de l'objet Region
$hGraphics Handle de l'objet Graphics qui contient les transformations nécessaires pour calculer les conversions des coordonnées uiverselles en coordonnées du périphérique pour la région et le rectangle

Valeur de retour

Succès: Retourne un tableau contenant la position du rectangle et ses dimensions:
    [0] - Coordonnée X du coin supérieur gauche du rectangle
    [1] - Coordonnée Y du coin supérieur gauche du rectangle
    [2] - Largeur du rectangle
    [3] - Hauteur du rectangle
Échec: Définit @error <> 0, @extended contient le code erreur GPSTATUS ($GPID_ERR*).

Voir aussi

Consultez GdipGetRegionBounds dans la Librairie MSDN.

Exemple

#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>

Example()

Func Example()
    ; Crée une GUI
    Local $hGUI = GUICreate("GDI+", 800, 340)
    GUISetState(@SW_SHOW)

    _GDIPlus_Startup()
    Local $hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI)
    _GDIPlus_GraphicsClear($hGraphic, 0xFFFFFFFF)

    Local $hPen = _GDIPlus_PenCreate(0xFF0000FF)
    Local $hBrush = _GDIPlus_BrushCreateSolid(0xFFFF0000)

    Local $hFormat = _GDIPlus_StringFormatCreate()
    Local $hFamily = _GDIPlus_FontFamilyCreate("Arial")
    Local $hFont = _GDIPlus_FontCreate($hFamily, 96, 0)

    Local $sString = ChrW(0x1EF2) & ChrW(0x1EF3)

    Local $iPosX = 50
    Local $iPosY = 50
    Local $aStrDim = _MeasureString($hGraphic, $sString, $hFont, $hFormat, $hFamily)

    _GDIPlus_GraphicsDrawString($hGraphic, "MeasureString", $iPosX, $iPosY - 30)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX, $iPosY - 5, $iPosX, $iPosY + 5, $hPen)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX - 5, $iPosY, $iPosX + 5, $iPosY, $hPen)
    Local $tLayout = _GDIPlus_RectFCreate($iPosX, $iPosY, $aStrDim[4], $aStrDim[5])
    _GDIPlus_GraphicsDrawRect($hGraphic, $iPosX, $iPosY, $aStrDim[4], $aStrDim[5], $hPen)
    _GDIPlus_GraphicsDrawStringEx($hGraphic, $sString, $hFont, $tLayout, $hFormat, $hBrush)

    $iPosX = 300
    _GDIPlus_GraphicsDrawString($hGraphic, "MeasureCharacterRanges", $iPosX, $iPosY - 30)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX, $iPosY - 5, $iPosX, $iPosY + 5, $hPen)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX - 5, $iPosY, $iPosX + 5, $iPosY, $hPen)
    _GDIPlus_GraphicsDrawRect($hGraphic, $iPosX + $aStrDim[0], $iPosY + $aStrDim[1], $aStrDim[2], $aStrDim[3], $hPen)
    DllStructSetData($tLayout, "X", $iPosX)
    _GDIPlus_GraphicsDrawStringEx($hGraphic, $sString, $hFont, $tLayout, $hFormat, $hBrush)

    $iPosX = 550
    _GDIPlus_GraphicsDrawString($hGraphic, "CellAscent / CellDescent", $iPosX, $iPosY - 30)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX, $iPosY - 5, $iPosX, $iPosY + 5, $hPen)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX - 5, $iPosY, $iPosX + 5, $iPosY, $hPen)
    _GDIPlus_GraphicsDrawRect($hGraphic, $iPosX + $aStrDim[0], $iPosY + $aStrDim[1], $aStrDim[2], $aStrDim[7], $hPen)
    _GDIPlus_GraphicsDrawRect($hGraphic, $iPosX + $aStrDim[0], $iPosY + $aStrDim[1] + $aStrDim[7], $aStrDim[2], $aStrDim[8], $hPen)
    DllStructSetData($tLayout, "X", $iPosX)
    _GDIPlus_GraphicsDrawStringEx($hGraphic, $sString, $hFont, $tLayout, $hFormat, $hBrush)

    $sString = "fontsize goes crazy"
    $iPosX = 50
    $iPosY = 300

    Local $sChar
    For $i = 0 To StringLen($sString)

        $sChar = StringLeft($sString, 1)
        $sString = StringTrimLeft($sString, 1)

        If $sChar = " " Then
            $aStrDim = _MeasureString($hGraphic, "_", $hFont, $hFormat, $hFamily)
            $iPosX += $aStrDim[2]
            ContinueLoop
        EndIf

        _GDIPlus_FontDispose($hFont)
        $hFont = _GDIPlus_FontCreate($hFamily, Random(12, 48), 0)
        $aStrDim = _MeasureString($hGraphic, $sChar, $hFont, $hFormat, $hFamily)

        $tLayout = _GDIPlus_RectFCreate($iPosX - $aStrDim[0], $iPosY - $aStrDim[1] - $aStrDim[7], $aStrDim[4], $aStrDim[5])
        _GDIPlus_GraphicsDrawStringEx($hGraphic, $sChar, $hFont, $tLayout, $hFormat, $hBrush)

        $iPosX += $aStrDim[2]
    Next

    ; Boucle jusqu'à ce que l'utilisateur quitte.
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE

    ; Nettoie les ressources
    _GDIPlus_FontDispose($hFont)
    _GDIPlus_FontFamilyDispose($hFamily)
    _GDIPlus_StringFormatDispose($hFormat)
    _GDIPlus_BrushDispose($hBrush)
    _GDIPlus_PenDispose($hPen)
    _GDIPlus_GraphicsDispose($hGraphic)
    _GDIPlus_Shutdown()
EndFunc   ;==>Example

Func _MeasureString($hGraphics, $sString, $hFont, $hFormat, $hFamily, $iStyle = 0)
    Local $tLayout = _GDIPlus_RectFCreate()
    Local $aInfo = _GDIPlus_GraphicsMeasureString($hGraphics, $sString, $hFont, $tLayout, $hFormat)

    Local $aRanges[2][2] = [[1]]
    $aRanges[1][1] = StringLen($sString)
    _GDIPlus_StringFormatSetMeasurableCharacterRanges($hFormat, $aRanges)
    Local $aRegion = _GDIPlus_GraphicsMeasureCharacterRanges($hGraphics, $sString, $hFont, $aInfo[0], $hFormat)
    Local $aBounds = _GDIPlus_RegionGetBounds($aRegion[1], $hGraphics)
    _GDIPlus_RegionDispose($aRegion[1])

    Local $iFontHeight = _GDIPlus_FontGetHeight($hFont, $hGraphics)
    Local $iLineSpacing = _GDIPlus_FontFamilyGetLineSpacing($hFamily, $iStyle)
    Local $iAscent = $iFontHeight / $iLineSpacing * _GDIPlus_FontFamilyGetCellAscent($hFamily, $iStyle)
    Local $iDescent = $iFontHeight / $iLineSpacing * _GDIPlus_FontFamilyGetCellDescent($hFamily, $iStyle)

    Local $aDim[9]
    $aDim[0] = $aBounds[0]
    $aDim[1] = $aBounds[1]
    $aDim[2] = $aBounds[2]
    $aDim[3] = $aBounds[3]
    $aDim[4] = DllStructGetData($aInfo[0], "Width")
    $aDim[5] = DllStructGetData($aInfo[0], "Height")
    $aDim[6] = $iFontHeight
    $aDim[7] = $iAscent
    $aDim[8] = $iDescent

    Return $aDim
EndFunc   ;==>_MeasureString